(sin10+cos10)²(1-sin20)-cos²20

Answers

Answer 1

Answer:

0.

Step-by-step explanation:

I am assuming you want to evaluate

(sin10+cos10)²(1-sin20)-cos²20

That evaluates to 0.


Related Questions

help? write down the answer with an explanation I give brainiest

Answers

She started with 48 dollars since you divide 6 by 1/2 and get 12 then 12 divided by 1/2 is 24 and 24 divided by 1/2 is 48 , so the answer is 48 dollars

so we'll go backwards.

emily ended with $6.00.

6×2 at the music store = $12

12×2 at the bakery = $24

24 × 2 at the grocery store = $48

she started with a total of $48.00

to check answer:

48 ÷ 2 = 24 at bakery

24 ÷ 2 = 12 at music

12 ÷ 2 =6 at lunch

how do i simplify 81^5 = 3x

Answers

Step-by-step explanation:

81/5=3x

x=81×1/5×3

x=81/15

PLS HELP ASAP!!!

THANK YOU.

Answers

9514 1404 393

Answer:

rectangular prism: 288 ft³triangular prism: 72 ft³total: 360 ft³

Step-by-step explanation:

The volume of a rectangular prism is given by the formula ...

  V = LWH . . . . . the product of length, width, height

This rectangular prism has a volume of ...

  V = (12 ft)(6 ft)(4 ft) = 288 ft³ . . . . rectangular prism volume

__

The volume of a triangular prism is found from the formula ...

  V = Bh

where B is the area of the triangular base, and h is the height of the prism (distance between the triangular bases). The triangular base area is found from ...

  A = 1/2bh . . . . .where b is the base of the triangle, and h is its height.

Here, we have ...

  B = 1/2(6 ft)(4 ft) = 12 ft²

  V = Bh = (12 ft²)(6 ft) = 72 ft³ . . . . triangular prism volume

__

The total volume of the given geometry is the sum of the volumes of the parts:

  aquarium volume = 288 ft³ +72 ft³ = 360 ft³

Solve the inequality.
y-6 < -13
y< 19
O
y<7
y<-7
y < -19

Answers

Answer:

y < -7.

Step-by-step explanation:

y - 6 < -13

Add 6 to both sides:

y - 6 + 6 < -13 + 6

y < -7.

One card is selected from a deck of cards. Find the odds against drawing a 5

Answers

The answer would be 1/12 you get one chance out of the 12 cards in a suite

find the equation of the line perpendicular to the given line, through the given point x=-3; (1,8)

Answers

Answer:

y = 8

General Formulas and Concepts:

Algebra I

Coordinates (x, y)

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

Identify

[Line] x = -3

Point (1, 8)

Step 2: Find Perpendicular Line

A vertical line's slope is undefined.

The negative reciprocal of an undefined slope is 0.

Define perpendicular slope:                                                                          m = 0Substitute in m [Slope-Intercept Form]:                                                          y = 0x + bSimplify:                                                                                                               y = b

Given point (1, 8), our y-value is equal to 8.

∴ the perpendicular line is y = 8.

HELP!!!!
Car Survey In a survey of 3,200 people who owned a certain type of​ car, 2,080 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?

___% of the people surveyed were satisfied with the car.

Answers

Answer:

65%

Step-by-step explanation:

2080/3200times100%

6 Write 89.4945 correct to (a) nearest whole number, [1] (b) two decimal places. ​

Answers

Answer:

a)89

b)89.45

Step-by-step explanation:

a bag contains 5white and 3red identical balls.if the balls are drawn at random after the other without replacement. what is the probability that the first red ball is picked at fifth draw​

Answers

Answer:

2/7

Step-by-step explanation:

3. Find the length of X (in the picture) plssss I need help.​

Answers

Answer:

imagine the upper triangle as the same as the lower one, but rotated by 180° around the corner point they share, and resized.

the base of the smaller triangle is resized by a factor of 3/4.5, or reduced: 1/1.5

we just take the length from the hypotenuse of the bigger triangle and resize it to, either by multiplying with 1/1.5 or by dividing by 1.5

personally, I find the latter easier.

x = 7.5/1.5 = 5

What is 4+1 lets see how smart u sre

Answers

Answer:

its legit 5

Step-by-step explanation:

Answer:

Very tricky question..

4 + 1 is 5 because you have written 4+1 not 4 1

so 5 is correct answer

Step-by-step explanation:

hope it helps

Which statement is true regarding the graphed functions?

Answers

Answer:

I am pretty sure that it's the second one

Wayne is picking out some movies to rent, and he is primarily interested in dramas and horror films. He has narrowed down his selections to 7 dramas and 16 horror films. How many different combinations of 3 movies can he rent if he wants at least two dramas

Answers

Answer:

The number of selections is 49.

Step-by-step explanation:

drama = 7

horror films = 16

Select 3 movies at least two dramas

For 2 drama and 1 horror film

(3 C 2) x (16  C 1) = 48

For 3 drama

(3 C 3) = 1

So, total number of selections is 48 + 1 = 49.  

Which expression is equivalent to:
-(4a-4b)

-4a-4b
-8a+4b
-8ab
-4a+4b

Answers

Step-by-step explanation:

-4a+4b is equivalent to -(4a-4b).

hope it helpsstay safe healthy and happy..
Answer: -4a+4b


Explanation: This question is essentially asking you to distribute, and find the choice that matches your answer. When distributing in this equation, it is important to remember that the number outside of the parentheses is a -1, even if only a - sign is shown. -(4a-4b) is going to be distributed by multiplying -1•4a and -1•-4b. Keep in mind that when multiplying, a negative and a positive equals a negative, and a negative and a negative equals a positive. By doing so, your final result will be -4a+4b.


Hope this helps! Comment below for more questions.

PLEASE HELP ME WITH THIS ONE QUESTION
How many combinations with repetition are allowed if n = 6 and r = 3?

A) 27
B) 20
C) 18
D) 56

Answers

Answer:

D. 56

Step-by-step explanation:

The general solution for the number of combinations with repetition is represented by the following expression:

[tex]x = \frac{(n + r - 1)!}{r!\cdot (n-1)!}[/tex] (1)

Where:

[tex]n[/tex] - Total number of elements.

[tex]r[/tex] - Number of the sample.

If we know that [tex]n = 6[/tex] and [tex]r = 3[/tex], then the number of combinations with repetition:

[tex]x = \frac{(6+3-1)!}{3!\cdot (6-1)!}[/tex]

[tex]x = 56[/tex]

Hence, correct answer is D.

Find the probability

Answers

Answer:

[tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Red: 2

Blue: 4

Yellow: 4

[tex]\frac{2}{10}[/tex]

[tex]\frac{2/2}{10/2}=\frac{1}{5}[/tex]

Line t has an equation of y = -8x + 7. Line u includes the point (-1, 7) and is parallel to line
t. What is the equation of line u?
Write the equation in slope-intercept form. Write the numbers in the equation as proper
fractions, improper fractions, or integers.
Use y=mx+b.
1
2 3 4
5.
12

Answers

Answer:

y = -8x - 1

Step-by-step explanation:

y = mx + b

7 = -8 (-1) + b   Substitute in points for x and y. Substitute -8 for m (parallel)

7 = 8 + b

-1 = b

Please help me esperas this!!

Answers

9514 1404 393

Answer:

  tan(φ) = (x² -1)/(2x)

Step-by-step explanation:

In a right triangle, the tangent of one of the acute angles is the ratio of the opposite side to the adjacent side. Here, the length of the adjacent side is not given, but can be found from the Pythagorean theorem.

  adjacent side = √((x² +1)² -(x² -1)²) = √((x⁴ +2x² +1) -(x⁴ -2x²+1))

  adjacent side = √(4x²) = 2x

Then the tangent ratio is ...

  tan(φ) = (opposite side)/(adjacent side)

  tan(φ) = (x² -1)/(2x) . . . . . . for x > 0

Una librería consta de 5400 libros repartidos en 3 estanterías
En la estanteria A ahi el triple de libros que en la B y en la B la mitad que en la C calcular cuantos libros ahi en cada estanteria
Construir la ecuacion que plantea el problema

Answers

Answer:

B = 900 Libros

A = 2700 Libros

C = 1800 Libros

Step-by-step explanation:

A = 3B

2B = C

A + B + C = 5400

3B + B + 2B = 5400

6B = 5400

B = 5400 / 6

B = 900 Libros

A = 3B

A = 3(900)

A = 2700 Libros

C = 2B

C = 2(900)

C = 1800 Libros

Please help kdkeoeieiei

Answers

Answer:

NEGATIVE

Step-by-step explanation:

Answer:

positive

Step-by-step explanation:

positive

When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps andfound that 1304 of them were not pumping accurately (within 3.3 oz when 5 gal ispumped),and 5689 pumps were accurate. Use a 0.01 significance level to test the claimof an industryrepresentative that less than 20% of the pumps are inaccurate.

Answers

Answer:

The p-value of the test statistic from the standard normal table is 0.0017 which is less than the level of significance therefore, the null hypothesis would be rejected and it can be concluded that there is sufficient evidence to support the claim that less than 20% of the pumps are inaccurate.

Step-by-step explanation:

Here, 1304 gas pumps were not pumping accurately and 5689 pumps were accurate.

x = 1304, n = 1304 + 5689 = 6993

The level of significance = 0.01

The sample proportion of pump which is not pumping accurately can be calculated as,

The claim is that the industry representative less than 20% of the pumps are inaccurate.

The hypothesis can be constructed as:

H0: p = 0.20

H1: p < 0.20

The one-sample proportion Z test will be used.

The test statistic value can be obtained as:

[tex]Z=\frac{\hat{p}-P}{\sqrt{\frac{P(1-P))}{n}}}\\\\Z=\frac{0.186-0.20}{6993}\\\\Z=-2.927[/tex]

Use technology to help you test the claim about the population mean, mu, at the given level of significance, alpha, using the given sample statistics. Assume the population is normally distributed.
Claim: μ>1220;α=0.08; σ=211.67.
Sample statistics: x=1235.91,n=300
Identify the null and alternative hypotheses and calculate the standardized test statistic.

Answers

Answer:

H0 : μ = 1220

H1 : μ > 1220

Test statistic = 1.30

Step-by-step explanation:

Sample mean, x = 1235.91

Standard deviation, σ = 211.67

Sample size, n = 300

The hypothesis :

Null ; H0 : μ = 1220

Alternative ; H1 : μ > 1220

Tbe test statistic :

(x - μ) ÷ (σ/√(n))

(1235.91 - 1220) ÷ (211.67/√(300))

15.91 / 12.220773

= 1.3018

= 1.30

find slope from the pair of points (2,-2) (-5,4)

Answers

Answer:

-6/7

Step-by-step explanation:

If we have two points, we can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

   = ( 4 - -2)/( -5 -2)

   = ( 4+2) /(-5-2)

    = 6/-7

   = -6/7

A bus travels at a constant speed. The following table shows the distance the bus travels (in kilometers) over a period of
time (in hours):
distance (d) 42 252 378
time (9 0.5 3
4.5
a. Use complete sentences to describe the relationship represented in the table.
b. Write an equation using variables that represents the relationship shown in the table.
c. Use your equation to find how far the bus travels in 6 hours.

Answers

Answer:

question is not clear

specify the table

An American tourist visits South Africa with $3000. The exchange rate when she arrives is
$1 = 12.90. She changes all her dollars into rands and then spends R900 per day for seven
days. She changes the rands she has left back into dollars at a rate of $1 = R12.93. How much
does she get in dollars? show your working.​

Answers

9514 1404 393

Answer:

  $2505.80

Step-by-step explanation:

After the first exchange, the tourist has ...

  $3000(12.90 R/$) = R38,700

After 7 days, she has ...

  R38,700 -7(R900) = R32,400

After the second exchange, she has ...

  R32,400 × ($1/R12.93) = $2505.80

She gets $2505.80 at the second exchange.

The time, t, required to drive a fixed distance varies inversely as the speed, r. It takes 2 hr at a speed of 15 km/h to drive a fixed distance. How long will it take to drive the same distance at a speed of 29 km/h?

The time taken to drive the same distance at a speed of 29km/h is

Answers

Answer:

1.03h

Step-by-step explanation:

S=vt

S= 15km/h*2h

S= 30km

Distance same, S=30km

v= 29km/h

t = 30/29

t = 1.03 h


The length of a rectangle should be 8 meters longer than 7 times the width. If the length must be
between 43 and 106 meters long, what are the restrictions for the width, x?

Answers

Answer:

The restrictions for x would be 14 > x > 5.

Step-by-step explanation:

Let the length of the rectangle be y and the width be x.

That being said, the equation would be as follows:

[tex]y = 7x + 8[/tex]

[tex]y - 8 = 7x[/tex]

[tex]x = \frac{y-8}{7}[/tex]

Therefore, substituting the two values of y into the equations, we would get:

[tex]x = \frac{43-8}{7}[/tex]

[tex]x = \frac{35}{7}[/tex]

[tex]x = 5[/tex]

And:

[tex]x = \frac{106-8}{7}[/tex]

[tex]x = \frac{98}{7}[/tex]

[tex]x = 14[/tex]

Therefore, x would be between 5 and 14, and the restrictions for x would be 14 > x > 5.

Hope this helped!

Which is shown by the map

Answers

Answer:

A

Step-by-step explanation:

Answer: A

Step-by-step explanation: Different colours show different parts of africa and the general language spoken by individuals. From the map show, there are a lot of languages in Africa.

How do you find the surface area

Answers

Answer:

It depends on what shape you have. Here are some formulas for different shapes.

Step-by-step explanation:

Rectangular prism: 2lw + 2lh + 2wh

Cylinder: 2 pi r² + 2 pi rh

Sphere: 4 pi r²

Cone: pi r² + pi rl

Square-based pyrimid: 1/2lp +B

I hope this helps!

If I have 46 $ and the taxi cab charges 0.60$ plus 7$ fee how far can I ride

Answers

Answer:

65 miles

Step-by-step explanation:

costs = flat fee + cost per mile * miles

46 = 7+ .60m

Subtract 7 from each side

46-7 = 7+.6m-7

39 = .6m

Divide each side by .6

39/.6 = m

65 miles

Other Questions
Find each percent of change. State whether the percent increase or decrease. Please solve and show your work please.A) original : 233 new: 200 When Beowulf realizes that the battle with the fire dragon will go against him, hea. dies.C. curses fate and blames God.b. continues to fight.d. allows the fire dragon to inflict a mortal blow. 4x-5y+2x+4+6+9y+7x+2 In a pie chart the central angle in degrees at the center of the circle is a) 180 b) 360 c) 270 d) 90 Consider the case of Cranked Coffee Company:Cranked Coffee Company is a mature firm that has a stable flow of business. The following data was taken from its financial statements last year:Annual sales $10,200,000Cost of goods sold $6,630,000Inventory $3,200,000Accounts receivable $2,200,000Accounts payable $2,400,000Cranked Coffees CFO is interested in determining the length of time funds are tied up in working capital. Use the information in the preceding table to complete the following table. (Note: Use 365 days as the length of a year in all calculations, and round all values to two decimal places.)ValueInventory conversion period 46.93; 41.71; 176.71; or 39.11Average collection period 27.25; 78.73; 24.38; or 22.94Payables deferral period 32.50; 41.07; 33.24; or 132.13Cash conversion cycle 39.62; 122.77; 37.54; 45.88B: Both the inventory conversion period and payables deferral period use the average daily COGS in their denominators, whereas the average collection period uses average daily sales in its denominator. Why do these measures use different inputs?Inventory and accounts payable are carried at cost on the balance sheet, whereas accounts receivable are recorded at the price at which goods are sold.Current assets should be divided by sales, but current liabilities should be divided by the COGS.C. Is there generally a positive or negative relationship between net working capital and the cash conversion cycle?(In other words, if a firm has a high level of net working capital, is it likely to have a high or low cash conversion cycle?)There is a positive relationship between net working capital and the cash conversion cycle.There is a negative relationship between net working capital and the cash conversion cycle.D. What are the four key factors in a firms credit policy?Credit terms, discounts, credit standards, and collection policyCredit period, discounts, credit standards, and collection policyE. If the credit terms as published by a firm were 2/15, net 60, this means the firm will:allow a 2% discount if payment is received within 15 days of the purchase, and if the discount is not taken the full amount is due in 60 days.allow a 15% discount if payment is received within 2 days of the purchase, and if the discount is not taken the full amount is due in 60 days.F. The management at Cranked Coffee Company wants to continue its internal discussions related to its cash management. One of the finance team members presents the following case to his cohorts:Case in DiscussionCranked Coffee Companys management plans to finance its operations with bank loans that will be repaid as soon as cash is available. The companys management expects that it will take 40 days to manufacture and sell its products and 35 days to receive payment from its customers. Cranked Coffees CFO has told the rest of the management team that they should expect the length of the bank loans to be approximately 75 days.Which of the following responses to the CFOs statement is most accurate?The CFO is not taking into account the amount of time the company has to pay its suppliers. Generally, there is a certain length of time between the purchase of materials and labor and the payment of cash for them. 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